Abstract
Currently, one of the most pressing problems facing society is the replacement of the existing energy system based on the limited, highly polluting fossil fuels, with a fundamentally new concept based on clean and limitless sustainable sources. The large-scale use of renewable energy sources and the transition from internal combustion engines to electric vehicles is one promising strategy for the development of science and technology in the foreseeable future. One of the most promising approaches in the development of new generation supercapacitors (SC) is the use of solid polymer electrolytes with decisive advantages over liquid and solid inorganic electrolytes, including non-combustibility, no electrolyte leakage, excellent flexibility and low cost of production. This mini-review discusses the main types of SCs, the materials used to develop polymer gel electrolytes (GPEs), and recent advances in the development of GPEs based on various types of carbon materials.